Phytotherapy · Menopause & Cognitive Support · Lamiaceae

Sage

Salvia officinalis (Lamiaceae) — the “sacred herb” of the Romans, a Mediterranean semi-shrub whose leaf is studied for menopausal hot flushes, menstrual disorders, memory, and mouth and throat inflammation. Its diterpene antioxidants and estrogen-like activity make it a powerful remedy, while the thujone in its essential oil makes strict dosing essential.

44 Primary Refs
12 Properties
Leaf Parts Used
✦ Researched
Last Updated October 24, 2026
Primary Source Wikiphyto · NCBI PubMed · EMA Monograph
Family Lamiaceae
Perennial Semi-Shrub · Mediterranean

Botanical Overview

Sage is a very aromatic perennial semi-shrub, branched, woody at the base and about 70 cm tall. It is native to the calcareous soils of the Mediterranean region.

HabitBranched semi-shrub
HeightAbout 70 cm
Native SoilCalcareous
Essential Oil Yield1–2.5%
Taxonomic Classification

Taxonomy & Identification

Latin Name
Salvia officinalis L.
Family
Lamiaceae
Common Names
Sage, Common Sage, Sauge officinale, Herbe sacrée, Thé d'Europe
Parts Used
Leaves or flowering tops
Habitat
Mediterranean region, calcareous soils
Regulatory Status
French Pharmacopoeia, list A (leaf)
Ethnobotany & Traditional Use

History & Tradition

The Romans called sage the “sacred herb”, and Dioscorides and Galen praised it as an emmenagogue and tonic. The genus name Salvia comes from the Latin salvare, “to save”. In the Middle East, women with reproductive problems traditionally drink sage infusions.

Sage is one of the species of the 1949 Swiss vulnerary tea (Codex), a blend that also includes betony, hyssop, oregano, rosemary, thyme and arnica flowers, in equal parts.

Modern research has focused on sage for menopausal hot flushes, cognition, and its antioxidant diterpenes. 2324

⚠ Different Salvia Species

Salvia miltiorrhiza (danshen), used in Chinese medicine and studied as anti-osteoporotic, is a different species from common sage. 1 Findings on one Salvia species should not be assumed to apply to another.

Timeline

The Sacred Herb

Roman Era

The Romans name sage the “sacred herb”.

Dioscorides & Galen

Antiquity

Praised as an emmenagogue and tonic.

Swiss Vulnerary Tea

1949

Sage is included in the Codex vulnerary tea blend.

Hot Flush Research

2011–2013

Studies of sage tincture in menopausal women, and of its active principles. 23

The Key Compounds

Thujone, Carnosol & Rosmarinic Acid — Deep Dive

The convulsant ketone of the essential oil, alongside the diterpene and phenolic antioxidants behind sage's therapeutic research.

⚠️

Thujone (35–70% of the Oil)

A convulsant ketone (alpha- and beta-thujone) that makes the essential oil toxic, causing tachycardia, hot flashes, dizziness and epileptiform seizures. Its effect may be antagonized by trans-anethole. 44

🧬

Carnosic Acid & Carnosol

Diterpenes that are strong antioxidants; carnosic acid inhibits pancreatic lipase and both are described as neuroprotective. 111920

🌿

Rosmarinic Acid

The characteristic phenolic acid of the Lamiaceae, described as anti-asthenic and contributing to sage's strong antioxidant activity. 12

🌸

Luteolin-7-O-Glucoside

A flavonoid identified as the proposed estrogenic principle behind sage's effect on hot flushes. 3

Pharmaceutical Preparations

Parts Used & Available Forms

The leaves or flowering tops are used, in four forms; the essential oil is not for oral use.

Leaf Tisane

Infusion of the leaves or flowering tops.

Leaf

Mother Tincture

Tincture of the aerial parts.

Liquid Extract

Dry & Fluid Extracts

Standardized dry and fluid extracts.

Extract

Essential Oil

Distilled from the flowering plant. Should not be taken orally because of its thujone content.

External Only

Clinical Dosimetry

Dosages

Doses documented for sage come from traditional use and clinical trials; the leaf is dosed, while the essential oil is not taken orally.

Form Dose Frequency Context Notes
Infusion 1.5 g of finely cut herb (about one teaspoon per cup) 3–4 times daily; or morning and evening General traditional use Do not exceed 15 g of leaves per dose. 42
Mother Tincture 50 drops Morning and evening General traditional use Aerial-part tincture.
Dry Extract 500 mg Per day, for two months Premenstrual syndrome Reduced physical and psychological symptoms in a randomized study. 37
Essential Oil (inhalation) 2 drops Twice daily, 5 days a week, for 6 weeks Postmenopausal sexual function Inhaled only; not for oral use. 34
Phytochemistry

Composition

Whole-plant constituents and the essential-oil profile; no gemmotherapy (bud) fraction is documented for sage.

Whole Plant — Primary Constituents

Essential Oil1–2.5% of the plant, containing 35–60% thujone
Present
Tannins & Phenolic CompoundsTannins 3–7%, including rosmarinic acid
Present
Flavonoids1–3%: luteolin, luteolin-7-O-glucoside, 5-methoxysalvigenin, quercetin
Present
DiterpenesCarnosic acid, carnosol (picrosalvin), rosmanol, safficinolide
Present
TriterpenesVery rich in oleanolic acid (400 ppm) and derivatives; also ursolic acid
Present

Essential Oil — Principal Components

KetonesThujone 35–70% (alpha and beta) and camphor 8–37%
Major
Oxides & Alcohols1,8-Cineole 8–24% and borneol
Present
Sesquiterpenes8–15% of the oil
Present
MonoterpenesIncluding limonene
Present
DiterpenolSalviol
Present

Plant Properties — Pharmacodynamics

Twelve pharmacodynamic properties are documented for sage, led by its estrogen-like, antioxidant and cognitive activity.

12 Properties Estrogen-Like Antioxidant Clinical + Preclinical
🌸

Estrogen-Like

A tincture reduces the frequency and intensity of hot flushes; luteolin-7-O-glucoside is the proposed estrogenic compound, though this remains debated. 2341

🥛

Anti-Galactogenic & Reproductive

Increases mammary lobules in rats, and animal studies suggest improved fertility through follicle development and hormonal effects. 45678

🦴

Bone-Protective

Reduces bone loss in female rats by inhibiting resorption. 9

💧

Antisudorific

Reduces sweating, including in tuberculosis and chronic illness.

🛡️

Antioxidant

Strong antioxidant activity from flavonoids, rosmarinic acid and phenolic diterpenes; it is why sage is used in charcuterie. 1112

🦠

Antibacterial & Antifungal

Extracts and essential oil are active against bacteria including S. aureus and P. aeruginosa, and against Candida. 1330313233

🧫

Antiviral

Aqueous extracts and diterpenes show activity against herpes simplex virus. 1415

💊

Analgesic & Anti-Inflammatory

Analgesic via opioid-like mechanisms and TRPA1 modulation, and topically anti-inflammatory through ursolic acid. 161729

🍬

Antidiabetic & Lipase-Inhibiting

Hypoglycaemic effects, and carnosic acid inhibits pancreatic lipase, reducing post-meal triglyceride rise. 1819

🧠

Neuroprotective & Cognitive

Neuroprotective, improves memory in older adults, and inhibits cholinesterase. 2023242728

🎯

Antimutagenic & Antitumor

Antimutagenic terpenoids, anticancer potential of the diterpenes, and cytotoxic essential-oil sesquiterpenes. 212235

⚡

Anti-Asthenic & Cardiotonic

Strongly anti-asthenic (essential oil, rosmarinic acid) and cardiotonic and antiarrhythmic (oleanolic and ursolic acids); also anti-inflammatory for the mouth and throat.

Clinical Applications

Clinical Indications

Sage's best-studied use is menopausal hot flushes, with growing research on cognition and a range of traditional uses.

🌸
Menopause & Hot Flushes
Primary Indication
  • Hot Flushes: a sage tincture reduced their frequency and intensity in menopausal women. 23
  • Menopause & Premenopause: a documented indication of the leaf, and of the essential oil used externally.
  • Postmenopausal Sexual Function: inhalation of sage oil improved function and satisfaction in a randomized trial. 34
🩸
Menstrual & Reproductive Health
Documented Indication
  • Amenorrhea & Oligomenorrhea: traditional indications of the leaf.
  • Premenstrual Syndrome: 500 mg/day of dry extract for two months reduced physical and psychological symptoms. 37
  • Female Infertility & Ovulation: ovarian stimulation, though not effective after ovariectomy; animal studies support effects on follicles. 58
  • Sexual Function (Women of Reproductive Age): aromatherapy with sage and jasmine oils improved arousal, lubrication and dyspareunia in a randomized triple-blind trial. 10
  • Male Infertility (Animal): examined in obese rats. 38
🧠
Cognition & Alzheimer's Disease
Emerging Indication
  • Memory & Attention: a sage extract with anticholinesterase properties improved both in healthy older volunteers. 2427
  • Alzheimer's Disease: a double-blind trial in mild to moderate disease, and reviews of its potential. 2526283940
👄
Mouth, Throat & Digestion
Documented Indication
  • Gingivitis & Stomatitis: anti-inflammatory use for the mouth and throat; the aqueous extract inhibits an enzyme of Porphyromonas gingivalis.
  • Digestive Complaints: bloating, colitis, diarrhea, slow digestion, belching and flatulence.
❤️
Nerves, Heart & Vitality
Traditional Indication
  • Neurovegetative Dystonia: a documented traditional indication.
  • Minor Heart Insufficiency & Arrhythmias: linked to the cardiotonic effect of oleanolic and ursolic acids.
  • Asthenia & Anemia: traditional indications of the leaf (no references given).
💧
Essential Oil — External Use Only
Aromatherapy
  • Internal Use: strongly discouraged because of thujone toxicity.
  • Cycle Disorders: amenorrhea, oligomenorrhea and premenopause.
  • Oral & Neural: aphthous ulcers and neuritis.
  • Respiratory: flu, bronchitis and sinusitis.
Pharmacodynamics

Mode of Action

Sage acts through antioxidant diterpenes, a debated estrogenic flavonoid, cholinesterase inhibition, and the toxic effects of thujone.

🌸

Estrogenic Activity: Proposed and Contested

Luteolin-7-O-glucoside has been identified as having estrogenic properties, while AFSSAPS and AFSSA state that sage, although listed among phytoestrogen plants, has not demonstrated estrogenic activity. 341

🛡️

Carnosol & Carnosic Acid: Strong Antioxidants

The phenolic diterpenes are strong antioxidants, and rosmarinic acid is anti-asthenic. 111220

🧠

Cholinesterase Inhibition

Sage extracts inhibit cholinesterase, the proposed basis of improved memory, attention and mood. 2427

💊

Opioid-Like & TRPA1 Analgesia

Analgesic effects involve opioid-like mechanisms and TRPA1 receptor modulation, attributed to carnosol, ursolic acid and oleanolic acid. 16

⚠️

Thujone Neurotoxicity

Thujone is convulsant, and its effect may be antagonized by trans-anethole. 44

Clinical Safety

Safety & Interactions

Sage leaf infusions are used traditionally, but the essential oil is toxic and large leaf doses can cause seizures.

⚠ Genuine, Serious Risks Specific to This Plant

Read Before Using Sage

  • Essential oil toxicity: sage essential oil is described as toxic, convulsant and capable of causing violent epileptiform seizures; internal use is strongly discouraged. Thujone causes tachycardia, hot flashes, dizziness and convulsions.
  • Pregnancy and children: the essential oil is strictly forbidden in pregnancy and in children, as it may cause seizures; poisoning has been reported in a newborn and a child. 44
  • Leaf overdose: more than 15 g of leaves per dose may cause a hot sensation, tachycardia, dizziness and epileptiform convulsions. 42
  • Hormone-dependent cancers: sage is contraindicated in hormone-dependent cancers of the breast and ovary.
⚠️

Adverse Effects & Precautions

  • Estrogen-Like Effects: possible with overdose or prolonged use (more than 15 g of leaves per dose). 42
  • Oocyte Toxicity (In Vitro): toxic to mouse oocytes at high concentration (0.5 g/ml). 43
  • Hepatocyte Effects: the essential oil showed protective effects at low dose in isolated rat hepatocytes, so dose determines the effect. 36
  • Anti-Galactogenic Activity: sage reduces milk production, which matters during breastfeeding.
🚫

Contraindications & Interactions

  • Hormone-Dependent Cancers: contraindicated in breast and ovarian cancer.
  • Tamoxifen (Uncertain): sage may block the conversion of tamoxifen to its active form, possibly via CYP2D6 inhibition; this is flagged as uncertain in the source.
  • Pregnancy & Children: the essential oil is strictly forbidden. 44
  • Regulatory Status: listed in the French Pharmacopoeia, list A (leaf), and recognized by Germany's Commission E.
Clinical Disclaimer: This information is for educational purposes only and is not a substitute for professional medical advice. Consult a qualified healthcare provider before using sage, particularly if you are pregnant, breastfeeding, have a hormone-sensitive condition, or take tamoxifen.
Common Questions

Frequently Asked Questions

What is sage used for?
Sage (Salvia officinalis) is used for menopausal hot flushes, menstrual irregularities (amenorrhea, oligomenorrhea), premenstrual syndrome, mouth and throat inflammation such as gingivitis and stomatitis, and digestive complaints such as bloating and slow digestion. Its potential in memory and Alzheimer's disease is also being studied.
Does sage help with hot flashes?
Yes, research supports it: a tincture of sage reduced the frequency and intensity of hot flushes in menopausal women in a published study, and luteolin-7-O-glucoside has been proposed as the estrogenic active principle. Other authorities, however, state that sage has not demonstrated estrogenic activity, so the mechanism remains debated.
What is the usual sage dosage?
The documented infusion dose is 1.5 g of finely cut herb, taken 3 to 4 times daily, or one teaspoon per cup morning and evening. The mother tincture is taken as 50 drops morning and evening, and a dry extract was tested at 500 mg per day for two months in premenstrual syndrome.
Is sage safe?
Sage leaf is generally used in infusion, but overdose or prolonged use (more than 15 g of leaves per dose) can cause estrogen-like effects, a hot sensation, tachycardia, dizziness and epileptiform convulsions. Sage is contraindicated in hormone-dependent cancers, and the essential oil is toxic and should not be taken orally.
What is thujone and why does it matter?
Thujone is a ketone that makes up 35 to 70% of sage essential oil. It is convulsant, causing tachycardia, hot flashes, dizziness and violent epileptiform seizures, which is why the essential oil is not recommended for internal use.
Can sage improve memory or help with Alzheimer's disease?
A sage extract with anticholinesterase properties improved memory and attention in healthy older volunteers, and a randomized controlled trial studied sage extract in mild to moderate Alzheimer's disease. Systematic reviews describe these findings as promising rather than conclusive.
Can I drink sage tea while pregnant or breastfeeding?
The essential oil is strictly forbidden in pregnancy and children because it may cause seizures. Sage also has estrogen-like and anti-galactogenic (milk-reducing) properties, so medical advice should be sought before use during pregnancy or breastfeeding.
Can sage interact with breast cancer treatment?
Sage is contraindicated in hormone-dependent cancers of the breast and ovary. It may also block the conversion of tamoxifen to its active form, possibly through CYP2D6 inhibition, although this interaction is marked as uncertain in the source literature.
How does sage work?
Sage's main active compounds include rosmarinic acid, the diterpenes carnosic acid and carnosol (strong antioxidants), luteolin-7-O-glucoside (estrogenic), and cholinesterase-inhibiting constituents. Analgesic effects involve opioid-like mechanisms and TRPA1 receptor modulation.
Sources

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Additional Sources

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